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III. AMPLIFIER BOARD
This description also applies to the PF SUB 12.1 subwoofer amplifi er board.
D
C
B
A
E
F
F
40
200
MIN
MAX
Hz
Hz
D
C
A
B
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VOLUME LEVEL CONTROL
A
Increases or decreases the volume of your subwoofer.
- If you are using the LFE input of your subwoofer : Set the "LEVEL" knob to mid-
range and then adjust the volume using your Home Theatre amplifi er's settings to
your convenience. If necessary, adjust the volume of the subwoofer to balance the
sound level set by your Home Theatre processor.
- If you are using the Left & Right inputs of your subwoofer : Set the "LEVEL" knob to
mid-range and adjust the bass level to achieve the best sound harmony with your
system.
CROSSOVER CONTROL
B
Adjust frequency of low pass crossover for good matching with your main speakers.
- If you use the LFE input of your subwoofer with a Home Theatre amplifi er, the cu-
toff frequency is set directly on its processor. In this case, set the maximum cutoff
frequency on your subwoofer to 200Hz.
- In a stereo confi guration and a more "Hi-Fi" listening experience, use lowest fre-
quency as possible (≤ 80Hz).
PHASE INVERT
C
Changes the phase of the subwoofer so for a perfect match with the main
loudspeakers in the system. (example on page 22)
AUTO-ON SENSITIVITY SWITCH
D
"On" mode: Corresponds to a forced switch-on.
"Auto" mode : When not in use the subwoofer go to standby mode to save power.
The Auto ON Switch dictates the sensitivity level at which the unit will turn ON
automatically (trigger mode).
LINE LEVEL OUTPUT
E
Connect to a second active subwoofer if need
LINE LEVEL INPUT
F
Connect it to PRE-OUT output your preamplifi er or integrated amplifi er in stereo
mode. For you home theatre amplifi er or processor, use LFE connection.
CAUTION :
The low cutoff frequency is different between PFSUB 8.1, PFSUB 10.1 and
PFSUB12.1 :
- SUB 8.1 = 40 Hz to 200 Hz
- SUB 10.1 = 50 Hz to 200 Hz
- SUB 12.1 = 40 Hz to 200 Hz
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